Import and export of slate through the port of Porthmadog,
- BD5/1.
- File
- 1902-1934.
Data relating to the slate exported, 1902-1914, and foreign slate imported, 1903-1914, 1929, 1934.
Import and export of slate through the port of Porthmadog,
Data relating to the slate exported, 1902-1914, and foreign slate imported, 1903-1914, 1929, 1934.